Combination filter and air-chamber.



E. A. GEHRKE.

COMBINATION FILTER AND AIR CHAMBER.

APPLICATION FILED IUNE I3 I9I3.

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WITNESSES Patented Oct. 26, 1915.

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EDWARD A. G-JEHRIKJE, 0F LINCOLN, NEBRASKA.

COMBINATION FILTER AND AIR-CHAMBER.

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To all 'whom t may concern: t

Be it known that ll, EDWARD A. GEHRKE,

a citizen of the United States, residing at Lincoln, in the county ofLancaster and State of Nebraska, have vinvented certain new and usefulImprovements in Combination Filters and Air-Chambers, of which thefollowing is a`specification.

This invention relates to an improved air chamber and filterparticularly adapted for pip in connection with water pipes or the rllheobject of the invention contemplates the provision of an'improvedfiltering device or attachment for carbonators, water supply pipes,etc., to collect and remove the solid impurities that may be in thewater, thereby preventingv subsequent discharge of the impurities withthe Water drawn for various purposes.

` A further object of the invention resides in the provision of meansincluding a specially arranged filtering attachment, whereby all solidforeign matter, such as sand, gravel, grit, etc., may be collected in asuitable receptacle or a basin provided therefor, thus preventingfurther passage of the said foreign matter into the faucet, carbonatoror l other device or appliance 'through which the all@ water is drawn orpasses.

A still further object of the invention resides in the provision of anair chamber,

formed within the filtering attachment whereby the strain attending thesudden cutting olf of the water supply is. received and absorbed withinthe said attachment,

as the chamber is formed directly over and in communication with thecatch basin comprising a part of the invention.

It is a well known fact that faucets, flushing devices, carbonators andother appliances often leak on account of sand or other foreign matterbeing distrained within the valve employed in connection therewith andit is to overcome this objectionable feature that the filtering devicecomprising my invention is designed.

The above and additional objects are accomplished by such means as areillustrated in the accompanying drawings, described in the followingspecification and then more particularly pointed out in the claims whichare appended hereto and form a part of this application. p

In describing my invention in detail reference will be had to theaccompanyingv Specification of. Letters Patent. Application filed June13, *1913. Serial No. 773,548. a

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drawings wherein like characters denote lili-.rev

may be readily utilized for the filtration of various other liquidssusceptible of its application. 1

Referring now to the drawings, wherein 1s illustrated the preferred formof my invention, the numeral 1 designates a water supply pipe to whichis connected, by means .of a packing nut 2, the inlet pipe 3 of thefilter device. The said pipe 3 has a flared 'end 4 formed integrallytherewith from which an annular flange 5 projects, the saidliange'fitting within a cap 6 threaded upon the lower extremit of acylindrical receptacle or container 7], the latter forming the shell orbody of the filter. The lower eX- tremity of the cap 6 has formedintegrally therewith an inwardly directed annular flange 8, theperiphery of which engages the outer face of the flared portion 4, whilethe flange 5 of the said flared portion overlaps the said flange 8 ofthe cap for effecting a secure connection between the inlet pipe 3 andthe body 7 of the filter. To prevent the escape of the liquid containedin the filter, I provide a rubber gasket 9 fitted upon the upper face ofthe flared portion 4 and upon which the extremity of the body 7 normallyrests. The said inlet pipe 3 extends into the body 7 of the filter as at8 so as to discharge the water thereinto at a point about midway thelength of the body 7.

The upper end of the filter body 7 is threaded into a cap 10 and isconnected to an outlet pipe 11 in the same manner as the inlet pipe 3 isconnected, such connection comprising a flared portion 12, an annularflange-13 and gasket 14. rllhe continuation of the outlet pipe 11extends'into the interior of the body 8 as at 15, the lower extremity ofsuch extension 15 having a screen 16 fitted across the end thereof, thepurpose of which will subsequently appear. A discharge pipe 17 issecured to the outlet pipe 11 of the filter by means of a packing nutl18, the said outlet pipe extending into `the scribed in detail. Thewater upon entering the body 7 by means of the supply pipe 1 the inletpipe 3 and extension 8 is discharged into the said body about midway thelength f thereof, the sand, grit or other solid impurities contained inthe water being checked or prevented from entering the extension 15 ofthe outlet pipe 11 by means of the screen 16 secured over the mouththereof. By extending the inlet pipe 3 into the interior` of the body 7by means of the extension 8, such impurities or foreign matter is freeto settle in the catch basin of the said body where it is collected anddistrained until subsequently purposely v removed. By the provision ofthe extension 15, it will be seen that the water is free to pass fromthe body 7, free from all solid impurities, where vit is dischargedthrough the medium of the outlet pipe 11, discharge pipe 1 7 and thefaucet or otherappliance employed in connection with the invention.

An air chamber is formed within the upper extremity of the body 7 forthe purpose of receiving and absorbing the shock or strain that wouldotherwise be imparted to the pipes and joints, attending the suddencutting off of the water supply. By extending the projection 15 into theinterior of the body 7 it will be seen that the water is normallyretained upon a level approxiv mately on the same plane as the extremityof the said extension thus forming the chamber between the upperextremity of the body and the water level, this construction allowingthe air within the chamber to be compressed for receiving the strain andshock as above described.

It will be seen from the above, taken in connection with theaccompanying drawings that the water upon leaving the filter l is freefrom all solid substance, and that the same will in no way interferewith the work-.

ing of the valves or other appliances through which it is finallydischarged; that the sediment may be withdrawn or removed from the catchbasin by disconnecting the body 7 from the cap 6; and that various formsof water tight connections may be employed in connection with a deviceof this character Without in any way altering or affecting the utilityof the device.

In reduction to practice, I have found that the form of my invention,illustrated in the drawings and referred to in the above description, asthe preferred embodiment, is the most efficient and practical; yetrealizing that the conditions concurrent with the adoption of my devicewill necessarily vary, I desire to emphasize the fact that various minorchanges in details of construction, proportion and arrangement of partsmay be resorted to when required, without sacrificing any of theadvantages of my invention, as defined in the appended claims.

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent, is

1. In a filter, a tubular vessel, an inlet pipe connected through thelower end of said tubular vessel in a water-tight seal and extended tohave the inner end thereof terminate at a point adjacent the center ofsaid vessel, an outlet pipe sealed through the upper end of said vesselto extend into proximity to the inlet pipe to be spaced directlythereabove and beveled at the lower end to form an opening substantiallyelliptical when viewed in side elevation, and a strainer medium throughwhich the water passes in the travel through the outlet.

2. In a filter, a vessel comprising a substantially tubular body, aninlet pipe extended through the bottom opening of said vessel to besealed therein in a water-tight relation and to have theinner end at apoint proximate to the center of said vessel, an outlet ipe extendedthrough the upper end of said) tubular vessel to have the intake endpositioned directly above and cut at an angle tothe vertical axisthereof, a screen arranged over said angularly cut end of the outletpipe in a manner to strain the water passing therethrough and todischarge the impurities back into the vessel around the inwardlyextended portion of said inlet pipe, and all of said parts so arrangedthat as water is permitted to flow through the inlet pipe, the air isdriven from the vessel to a point that the water level is established atthe highest open space of the angularly cut end of the outlet pipe andthe remaining air is maintained as an air cushion.

In testimony whereof -I afiix my signature in presence of two witnesses.

EDIVARD A. GEHRKE.

Witnesses:

OLLIE REITTER, R. A. HARVEY.

